| 增压富氧燃烧流化床炉内传热特性 |
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| 引用本文： | 王春波,霍志红,邢晓娜.增压富氧燃烧流化床炉内传热特性[J].动力工程,2012,32(3):182-186. |
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| 作者姓名： | 王春波 霍志红 邢晓娜 |
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| 作者单位： | 1. 华北电力大学能源动力与机械工程学院,保定,071003
2. 河北省电力勘测设计研究院,石家庄,050031 |
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| 基金项目： | 教育部新世纪优秀人才支持计划资助项目，中央高校基本科研业务费专项(重点)资金资助项目 |
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| 摘 要： | 建立了增压富氧燃烧流化床锅炉炉内传热模型.通过模型计算,分析了颗粒粒径、空隙率、床层温度及系统压力等因素对炉内传热特性的影响.结果表明：随着颗粒粒径增大,传热系数减小;随着空隙率增大,传热系数减小;随着温度升高,传热系数增大;随着压力升高,传热系数增大,但增加的幅度明显变小,说明当压力升高到一定程度时,继续升高压力对传热没有太大影响.
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| 关 键 词： | 增压富氧燃烧 流化床锅炉 传热系数 模型 |
Heat Transfer Characteristics in a Pressurized Oxy-fuel Fluidized Bed Boiler |
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| WANG Chun-bo,HUO Zhi-hong,XING Xiao-na.Heat Transfer Characteristics in a Pressurized Oxy-fuel Fluidized Bed Boiler[J].Power Engineering,2012,32(3):182-186. |
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| Authors: | WANG Chun-bo HUO Zhi-hong XING Xiao-na |
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| Affiliation: | 1.School of Energy,Power and Mechanical Engineering,North China Electric Power University, Baoding 071003,China;2.Hebei Electric Power Design and Research Institute,Shijiazhuang 050031,China) |
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| Abstract: | A model of pressurized oxy-fuel fluidized bed boiler was established,with which the in-furnace heat-transfer characteristics were studied by analyzing relevant influencing factors such as the particle size,the porosity,the bed temperature and the pressure,etc.Results show that the heat-transfer coefficient increases with reducing particle size,decreasing porosity,rising temperature and elevating pressure.However,when the pressure gets up to a certain value,the heat-transfer coefficient will tend to remain stable even if the pressure continues to be elevated. |
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| Keywords: | pressurized oxy-fuel combustion fluidized bed boiler heat-transfer coefficient model |
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